Improvement in concrete and tile pavements



G. A. AHBAH. lmp revement in Cancrete and Tile Pavements. N 124 312 mqPatentedMarch5,1872.

GUSTAVUS A. ASOHBACH, OF NElV YORK, N. Y.

IMPROVEMENT IN CONCRETE AND TlLE PAVEMENTS.

To all whom it may concern:

Be it known that I, GUSTAVUS AnoLrrrUs ASOHBAOH, of the city, county,and State of New York, have invented a new and useful Improvement inConcrete Pavements; and I do hereby declare the following to be a full,clear, and exact description thereof, which will enable those skilled inthe art to make and use the same, reference being had to theaccompanyingdrawin g forming part of this specification, in whichdrawing Figure 1 represents a plan or top view of my pavement. Fig. 2 isa plan View of the tiles used in the formation of the borders of theblocks or sections of my pavement in a larger scale than the previousfigure. Fig. 3 is a sectional side view of two of these tiles.

Similar letters indicate corresponding parts.

This invention consists in a concrete pavement laid in detached sectionsor blocks, each block being confined within a border formed oftiles insuch a manner that in laying the pavement the spaces for the receptionof the sections of the pavement can be readily defined, thus allowing oflaying a number of sections at the same time, and, furthermore, eachsection can be readily taken up and relaid without disturbing theadjoining sections 5 also, in the combination of circular orsemicircular tiles with oblong tiles, the ends of which are concave tofit the peripheries of the semicircular or circular tiles in theformation of borders for blocks or sections of a concrete pavement insuch a manner that, by combinin g the circular or semicircular tileswith the oblong tiles, borders of many different forms can be produced,and at the same time tight joints are produced between the adjoiningtiles in whatever direction the oblong tiles may be placed in relationto the circular or semicircular tiles.

In the drawing, the letter A designates a circular tile, the letter B asemicircular tile, and the letter (J an oblong tile of that descriptionwhich I use in the formation of my borders for sections of concretepavement. These tiles are made of clay or any other suitable material,and the ends of the oblong tiles are made concave, as shown in Fig. 2,so that the same will fit the periplr eries of the circular orsemicircular tiles, and that tight joints will be produced between theadjoining tiles. The semicircular tiles are placed with theirrectilinear sides against thecurbstones or walls which inclose thepavement. The oblong tiles may be made with one concave and with onesquare end, if they are to be laid against the curbstonc or walls, or,if such is desirable, for the purpose of producing borders of certainshapes. The sharp corners of the concave ends of the oblong tiles arechamfered off, as shown in Fig. 2. The sides of my tiles are eithersquare or slightly sloping from the bottom toward the top, and saidtiles are provided with notches a I), either in their ends or centers,to facilitate their adjustment 011 the ground.

Before laying down my tiles, I paint their ends'with coal-tar,asphaltum, or an equivalent material, and, after they have been laid andadjusted in the proper position by means of pattern-frames and strings,the spaces between them are filled with the most approved plasticmixture known for the purpose of making pavements. A pavement thus laidwill permit the taking up of single sections and the renewing andrelaying of the same without interfering with the adjoining sectionsfurthermore, the progress of the work of laying the pavement will behastened, as a number of blocks or sections to be formed of concrete canbe worked at once. Besides this, my borders increase the durability ofthe pave ment, and impart to the same a novel and ornamental appearance.

\Vhat I claim as new, and desire to secure by Letters Patent, is

l. The combination of borders formed of tiles with the sections of aconcrete pavement, substantially as described.

2. The combination of circular and semicircular tiles with oblong tileshaving concave ends in the formation of borders for a sectional concretepavement, substantially as set forth.

G. A. ASOHBAOH. iVitnesses:

W. HAUFF, E. F. KASTENHUBER.

